As of December 2007, he is facing trial in Jakarta on terrorism-related charges. He has allegedly played major roles in several terrorist bombings in South East Asia, including the 2003 Marriott Hotel bombing which killed 12 people and the 2004 Australian embassy bombing which killed 11 people.

Abu Dujana is fluent in Arabic and English. He is thought to have travel to Pakistan and Afghanistan where he received weapons training and fought with the mujahideen. He has also spent time in Malaysia in the 1990s where he taught at an Islamic school in Johor and met Ali Ghufron who was involved in the 2002 Bali bombings. Abu Dujana also met and provided shelter to Noordin Mohammed Top.

Abu Dujana became a JI leader following the death of bomb-maker Azahari Husin in 2005. He headed JI's military wing and was capable of assembling bomb and recruiting members. He has allegedly procured and kept two caches of explosives for attacks against Christians and government workers in Poso, Central Sulawesi, Indonesia. Police has seized the two caches of explosives.[3]

He was arrested in June 2007 in Kebarongan, Banyumas, Central Java. He is on trial on anti-terrorism charges including plotting terrorist activities and sheltering the perpetrators of the Bali bombings. He could face the death penalty if convicted.[3][4]